I want to map the data I'm getting from DB, but there is a dynamic variable -

I don't know what the variable is gonna be how can i map it with dynamic option?
The Crypto is an interface -
class Crypto extends Sequelize.Model<IDBCryptoAttributes> implements IDBCryptoAttributes {
public id!: number;
public BTCUSD!: string;
public ETHUSD!: string;
public LTCUSD!: string;
public readonly createdAt!: Date;
public readonly updatedAt!: Date;
}
You can use OR:
cryptoPrices.map(r => r.BTCUSD || r.ETHUSD || r.LTCUSD)
I am assuming that 2 variables are empty and only one has a value.